- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
External Tankless Hot Water Heaters
Posted on 2/16/21 at 6:12 am
Posted on 2/16/21 at 6:12 am
We have a tankless hot water heater on the outside of the house. I just got up this morning and noticed the cold water is running fine on the sinks and toilets, but the hot water has very little pressure. Maybe 1/4 normal.
Should I run it to try to get it warm?
Leave it alone and let it thaw?
Shut off water to the house?
Obviously never had this issue before. I wrapped my outside faucets but didn’t do anything with the tankless water heater. (Didn’t even think about it, shame on me I know)
Should I run it to try to get it warm?
Leave it alone and let it thaw?
Shut off water to the house?
Obviously never had this issue before. I wrapped my outside faucets but didn’t do anything with the tankless water heater. (Didn’t even think about it, shame on me I know)
This post was edited on 2/16/21 at 6:15 am
16
Posted on 2/16/21 at 6:15 am to adamsblueguitar
Wrap the water heater itself or you mean just the piping?
Mine is gas and working just fine but it’s only 25 degrees here.
I would let your hot water run for a few.
Mine is gas and working just fine but it’s only 25 degrees here.
I would let your hot water run for a few.
This post was edited on 2/16/21 at 6:16 am
Posted on 2/16/21 at 6:22 am to adamsblueguitar
quote:Whatever you do...
Should I run it to try to get it warm?
Leave it alone and let it thaw?
Shut off water to the house?
It's...
A...
TANKLESS JOB
Posted on 2/16/21 at 6:26 am to adamsblueguitar
We ran warm water all night (also an external tankless heater) and it's been fine. Pipes were wrapped by the installer so we're good there.
Not sure what the proper way for you to handle it now. Personally I'd probably just let warm water run until it's fine, but I have no idea what I'm doing.
Not sure what the proper way for you to handle it now. Personally I'd probably just let warm water run until it's fine, but I have no idea what I'm doing.
This post was edited on 2/16/21 at 6:27 am
Posted on 2/16/21 at 6:27 am to Kafka
quote:
TANKLESS JOB
Posted on 2/16/21 at 6:42 am to adamsblueguitar
Most have a freeze protection mode of the internals. Uses a few watts to keep things from freezing. I’d run it and flowing water should melt the blockage.
Posted on 2/16/21 at 6:55 am to adamsblueguitar
Get some of those disposable hand warmers and wrap them around the piping along with a towel. Should thaw in no time
Posted on 2/16/21 at 7:03 am to adamsblueguitar
If it’s still moving water run it. Ours froze several years ago because the the feed and outlet were uncovered and outside the house. I had to get a propane cooker for a turkey fryere under it to thaw it out (not recommended).
Posted on 2/16/21 at 7:06 am to adamsblueguitar
quote:
We have a tankless hot water heater on the outside of the house.
This seems like a terrible idea.
Even in Louisiana.
Posted on 2/16/21 at 7:15 am to adamsblueguitar
Pretty easy fix. It won’t kick on if there isn’t enough water passing through. So it’s not really a safety issue. Turn your hot water on then go outside with a hair dryer and start putting some heat on the exposed copper pipes. When you get the ice dam free wrap the pipes with something. Instead of running it inside, you can also open the relief valve that way you’ll know that it’s running again.
Posted on 2/16/21 at 7:16 am to adamsblueguitar
quote:
Hot Water Heaters
Posted on 2/16/21 at 7:19 am to LSUBoo
quote:. They can also be installed in attic, but most of the tankless water heaters I see are on the outside wall. I left my pipes dripping and did a delay wash on washing machine and everything is doing good. Now mine is gas so I don’t know if that makes a difference. I need to find out if mine has some sort of freeze protection
This seems like a terrible idea.
Posted on 2/16/21 at 7:21 am to Bawcephus
I also don't know why you need to heat HOT water?
Posted on 2/16/21 at 7:25 am to Morgan56
quote:
I also don't know why you need to heat HOT water
This
Posted on 2/16/21 at 7:31 am to adamsblueguitar
I know it’s too late at this time but mine is external as well. I have the pipes to and from it wrapped. Also my father called yesterday and said that the guy on the home improvement show on WWL said to run the hot water in a thin stream at the faucet farthest from the heater. That what I did and everything was good before I left for work.
Posted on 2/16/21 at 8:05 am to adamsblueguitar
Mine has freeze protection thermostat so it won’t freeze. I thought mine froze a few years ago. It was actually “tripped” because of low flow. I turned power off to it for 10 minutes to reset it and it worked fine after. I had called a plumber to come out and when he figured out how far away I was he told me to try that.
Posted on 2/16/21 at 8:20 am to adamsblueguitar
How hot can a hot water heater heat hot water?
Posted on 2/16/21 at 8:40 am to Hankg
I went outside to double check and there are no pipes running to it at all. Just a big box on the exterior wall.
How do I reset power to it? Breaker box?
How do I reset power to it? Breaker box?
Posted on 2/16/21 at 8:46 am to GeauxGoose
quote:
They can also be installed in attic, but most of the tankless water heaters I see are on the outside
I owned a house that had one in the attic. The only reason I can think of that people would prefer to have them outside is that you need to back flush them about once a year. Seems they would have a longer life inside versus in the elements. Mine lasted 14 years. It only supplied water to the master bedroom and worked well unless it was really cold outside, then it provided warm, not hot, water.
Posted on 2/16/21 at 8:52 am to adamsblueguitar
you should have a control panel plugged in to 115 volts somewhere around the heater. Maybe inside near where the heater is mounted. If it is tripped this panel should be flashing a code number like 16 or 21 or something like that. Turn off the power or unplug and then restart. It should clear the code and start working. The link below shows some of the most common error codes.
Tankless Water Heater trouble codes
Tankless Water Heater trouble codes
Page 1 of 2
Popular
Back to top
Follow TigerDroppings for LSU Football News